Array substrate, display panel and display device

Abstract

An array substrate, a display panel and a display device are provided. The array substrate includes a substrate; a plurality of light-emitting units, which are in the display area of the substrate and include emission colors: a first color, a second color and a third color, where a light transmittance of the first color and a light transmittance of the second color are both greater than a light transmittance of the third color; and a plurality of first fingerprint recognition units and a plurality of second fingerprint recognition units, which are in the display area of the substrate. Each light-emitting unit serves as a light source of each fingerprint recognition unit, and each first fingerprint recognition unit and each second fingerprint recognition unit have different configuration parameters so as to detect a same electric signal value with respect to a reflector.

What is claimed is: 
     
       1. An array substrate, comprising:
 a substrate comprising a display area with a non-display area surrounding the display area; 
 a plurality of light-emitting units located in the display area of the substrate, wherein the plurality of light-emitting units comprise a plurality of first light-emitting units configured to emit first color light, a plurality of second light-emitting units configured to emit second color light, and a plurality of third light-emitting units configured to emit third color light, wherein a light transmittance of the first color light and that of the second color light are both greater than that of the third color light; and 
 a plurality of first fingerprint recognition units and a plurality of second fingerprint recognition units, which are located in the display area of the substrate, wherein
 a projection of each of the plurality of first fingerprint recognition units onto the substrate overlaps at least in part with a projection of an area between a respective one of the plurality of third light-emitting units and one of a respective one of the plurality of first light-emitting units and a respective one of the plurality of second light-emitting units onto the substrate; 
 a projection of each of the plurality of second fingerprint recognition units onto the substrate does not overlap with the projection of the area between the third light-emitting unit and one of the first light-emitting unit and the second light-emitting unit onto the substrate; and 
 the projection of each of the plurality of second fingerprint recognition units onto the substrate overlaps at least in part with a projection of an area between the respective one of the plurality of first light-emitting units and the respective one of the plurality of second light-emitting units onto the substrate; wherein the plurality of light-emitting units are configured to: in a fingerprint recognition stage, serve as light sources for the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units, and the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units have different configuration parameters for detecting an electric signal value with respect to a reflector. 
 
 
     
     
       2. The array substrate of  claim 1 , wherein
 each of the plurality of first fingerprint recognition units comprises a first photosurface located on a surface of each of the plurality of first fingerprint recognition units facing a display side; and 
 each of the plurality of second fingerprint recognition units comprises a second photosurface located on a surface of each of the plurality of second fingerprint recognition units facing the display side; wherein 
 an area of the first photosurface is greater than that of the second photosurface. 
 
     
     
       3. The array substrate of  claim 2 , wherein
 the plurality of light-emitting units are arranged in an array; 
 the first photosurface comprises a first portion and a second portion; a projection of the first portion onto the substrate is within the projection of the area between the third light-emitting unit and one of the first light-emitting unit and the second light-emitting unit onto the substrate, wherein the third light-emitting unit and one of the first light-emitting unit and the second light-emitting unit are adjacent to each other in a row direction; and a projection of the second portion onto the substrate is within a projection of an area between respective two adjacent rows of the plurality of light-emitting units onto the substrate; and 
 the second photosurface comprises a third portion; and a projection of the third portion onto the substrate is within the projection of the area between the first light-emitting unit and the second light-emitting unit onto the substrate, wherein the first light-emitting unit and the second light-emitting unit are adjacent to each other in the row direction. 
 
     
     
       4. The array substrate of  claim 1 , wherein a light brightness of the first light-emitting unit corresponding to the first fingerprint recognition unit is greater than a light brightness of another first light-emitting unit corresponding to the second fingerprint recognition unit. 
     
     
       5. The array substrate of  claim 1 , wherein a light brightness of the second light-emitting unit corresponding to the first fingerprint recognition unit is greater than a light brightness of another second light-emitting unit corresponding to the second fingerprint recognition unit. 
     
     
       6. The array substrate of  claim 1 , wherein each of the plurality of first fingerprint recognition units and each of the plurality of second fingerprint recognition units respectively comprise a photosensitive diode, a thin film transistor and a storage capacitor, wherein
 an anode of the photosensitive diode is electrically connected to a first electrode of the storage capacitor and a cathode of the photosensitive diode is electrically connected to a second electrode of the storage capacitor and to a source electrode of the thin film transistor; a gate electrode of the thin film transistor is electrically connected to a switch control line; and a drain electrode of the thin film transistor is electrically connected to a signal line; and 
 the photosensitive diode is configured to convert a fingerprint signal light into a current signal. 
 
     
     
       7. The array substrate of  claim 6 , wherein
 a capacitance value of the storage capacitor of each of the plurality of first fingerprint recognition units is less than that of each of the plurality of second fingerprint recognition units. 
 
     
     
       8. The array substrate of  claim 7 , wherein
 a distance between the first electrode and the second electrode of the storage capacitor of each of the plurality of first fingerprint recognition units is greater than that of the storage capacitor of each of the plurality of second fingerprint recognition units; or 
 an enfilade area between the first electrode and the second electrode of the storage capacitor of each of the plurality of first fingerprint recognition units is less than that of the storage capacitor of each of the plurality of second fingerprint recognition units. 
 
     
     
       9. The array substrate of  claim 1 , wherein the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units are located as one of the following manners:
 the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units are located between the substrate and the plurality of light-emitting units; or 
 the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units are located on a side of the substrate facing away from the plurality of light-emitting units; or 
 the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units are located on a side of the plurality of light-emitting units facing away from the substrate; or 
 the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units are located in a same layer as the plurality of light-emitting units, while each of the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units is between two adjacent ones of the plurality of light-emitting units. 
 
     
     
       10. A display panel, comprising an array substrate, wherein the array substrate comprises:
 a substrate comprising a display area with a non-display area surrounding the display area; 
 a plurality of light-emitting units located in the display area of the substrate, wherein the plurality of light-emitting units comprise a plurality of first light-emitting units configured to emit first color light, a plurality of second light-emitting units configured to emit second color light, and a plurality of third light-emitting units configured to emit third color light, and wherein a light transmittance of the first color light and that of the second color light are both greater than that of the third color light; and 
 a plurality of first fingerprint recognition units and a plurality of second fingerprint recognition units, which are located in the display area of the substrate, wherein
 a projection of each of the plurality of first fingerprint recognition units onto the substrate overlaps at least in part with a projection of an area between a respective one of the plurality of third light-emitting units and one of a respective one of the plurality of first light-emitting units, and a respective one of the plurality of second light-emitting units onto the substrate; 
 a projection of each of the plurality of second fingerprint recognition units onto the substrate does not overlap with the projection of the area between the third light-emitting unit and one of the first light-emitting unit and the second light-emitting unit onto the substrate; and 
 the projection of each of the plurality of second fingerprint recognition units onto the substrate overlaps at least in part with a projection of an area between the respective one of the plurality of first light-emitting units and the respective one of the plurality of second light-emitting units onto the substrate; wherein the plurality of light-emitting units are configured to: in a fingerprint recognition stage, serve as light sources for the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units, and the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units have different configuration parameters for detecting an electric signal value with respect to a reflector. 
 
 
     
     
       11. The display panel of  claim 10 , wherein the display panel is a liquid crystal display panel, and further comprises a color filter substrate opposite to the array substrate, and a liquid crystal layer between the array substrate and the color filter substrate. 
     
     
       12. The display panel of  claim 10 , wherein the display panel is an organic light-emitting display panel and further comprises a cover plate opposite to the array substrate. 
     
     
       13. A display device, comprising a display panel comprising an array substrate, wherein the array substrate comprises:
 a substrate comprising a display area with a non-display area surrounding the display area; 
 a plurality of light-emitting units located in the display area of the substrate, wherein the plurality of light-emitting units comprise a plurality of first light-emitting units configured to emit first color light, a plurality of second light-emitting units configured to emit second color light, and a plurality of third light-emitting units configured to emit third color light, and wherein a light transmittance of the first color light and that of the second color light are both greater than that of the third color light; and 
 a plurality of first fingerprint recognition units and a plurality of second fingerprint recognition units, which are located in the display area of the substrate, wherein
 a projection of each of the plurality of first fingerprint recognition units onto the substrate overlaps at least in part with a projection of an area between a respective one of the plurality of third light-emitting units and one of a respective one of the plurality of first light-emitting units, and a respective one of the plurality of second light-emitting units onto the substrate; 
 a projection of each of the plurality of second fingerprint recognition units onto the substrate does not overlap with the projection of the area between the third light-emitting unit and one of the first light-emitting unit and the second light-emitting unit onto the substrate; and 
 the projection of each of the plurality of second fingerprint recognition units onto the substrate overlaps at least in part with a projection of an area between the respective one of the plurality of first light-emitting units and the respective one of the plurality of second light-emitting units onto the substrate; wherein the plurality of light-emitting units are configured to: in a fingerprint recognition stage, serve as light sources for the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units, and the plurality of first fingerprint recognition units and the plurality of second fingerprint recognition units have different configuration parameters for detecting an electric signal value with respect to a reflector.